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The 2006 Linux File Systems Workshop
The 2006 Linux File Systems Workshop
Posted Jul 6, 2006 14:29 UTC (Thu) by hmh (subscriber, #3838)In reply to: The 2006 Linux File Systems Workshop by nix
Parent article: The 2006 Linux File Systems Workshop
Thanks! That does half the job already, and will at least find errors that have already happened and attempt to fix them.
It would be nice to have a "scrub" action that actually writes the entire array (all member devices, all sectors) to refresh aged sectors, though. "check" won't help there, and forcing a resync on every member device in turn is a very awkward (not to mention suboptimal) way to do it.
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The 2006 Linux File Systems Workshop
Posted Jul 6, 2006 15:23 UTC (Thu) by nix (subscriber, #2304) [Link]
Forcing a resync won't rewrite everything, in any case, only the parity stripes: the non-parity stripes will only be read (unless you hit a write error in the parity stripe, of course).
The 2006 Linux File Systems Workshop
Posted Jul 6, 2006 15:54 UTC (Thu) by hmh (subscriber, #3838) [Link]
You have to set the member device to be "refreshed" to faulty, hot-remove and hot-add it back. This is, of course, dangerous depending on your array configuration.
As I said, it is very awkward, and thus a scrub function would be welcome.